- Seven Tales in Amber
- Seven Thunders: Barbfrot
- Seveneves (free sampler)
- Seveneves – A hét Éva
- Several People Are Typing
- Severed
- Severed Galaxy
- Severed Signals
- Severely Skewed
- Sewer, Gas & Electric
- Sex Boots in Space
- Sex Clone
- Sex Slaves From Galaxy Seven
- Sex, Drugs, and Starships
- Sex, Love, And The Spacetime Pinch
- Sex, lögner och radband
- Sexual Chemistry and Other Tales
- Sexualität der Einsamkeit
- Señores del Olimpo
- SF Boxed Set: 140+ Intergalactic Action Adventures, Dystopian Novels & Lost World Classics
- SF Gateway Omnibus
- SF Ultimate Collection: Space Adventure & Alien Invasion Tales
- SF-Abenteuer-Paket: Im Weltraum verloren
- Sfacelo
- Sferogyls
- Sfidare Saber
- Sha!Sha!Sha!
- Shaan !
- Shades of Black
- Shades Of Darcone
- Shades of Dark
- Shades of Darkness
- Shades of Green
- Shades of Honor
- Shades of Treason
- Shades: The Gehenna Dilemma
- Shadow & Light
- Shadow Blade: LitRPG Adventure Fantasy
- Shadow Dance: Book 2 of the Shadows Rising Trilogy
- Shadow Detachment
- Shadow Fall
- Shadow Fall (Star Wars)
- Shadow For Hire Books 1-4: LitRPG Adventure Fantasy
- Shadow Fray
- Shadow Gambit: LitRPG Adventure Fantasy
- Shadow Game
- Shadow Hawk
- Shadow Hunting: LitRPG Adventure Fantasy
- Shadow Kingdom I: The Sin of Resurrection
- Shadow Moves
- Shadow of a Memory
- Shadow of Empire
- Shadow of Eternity
- Shadow of Freedom
- Shadow of Eternity
- Shadow of Freedom
- Shadow of the Dominion
- Shadow of the Giant
- Shadow of the Hegemon
- Shadow of the Last Men
- Shadow of the Swan
- Shadow of the Well of Souls
- Shadow of the Wraith
- Shadow of Victory
- Shadow Ops: Breach Zone
- Shadow Ops: Control Point
- Shadow Ops: Fortress Frontier
- Shadow Out of the Sky
- Shadow Over Mars
- Shadow Pawn
- Shadow People: Quickening of Wicked
- Shadow Planet: Mission 1
- Shadow Play
- Shadow Road: Book 1 of the Shadows Rising Trilogy
- Shadow Stone Princess — Twenty-Seven Minutes Collection
- Shadow Strike
- Shadow Talk
- Shadow War
- Shadow Warrior Retribution
- Shadow Warrior Absolution